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    <title>欢迎您来到随手记</title>
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<video src="https://vdept.bdstatic.com/7162644c396854624139547556693961/4a775344637a4249/4dcc5749311f66a9e4cf8379abb2dd7acb2329fc7fd7b5fc6cf722e2ed8c102464788510ea54374ecdbd97d463aa7d15.mp4?auth_key=1583464877-0-0-5563387fa117902311497e49ea7ce6dc" controls></video>
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    //     d1.innerHTML="";
    //     if(dsh<dch+dst+100){
    //         d1.innerHTML = "滑到底了！";
    //     }
    //
    //     // var bsh = document.body.scrollHeight;
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    //     // var bst = document.body.scrollTop;//杨瑞成 672+2344  android
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    //     //                +bsh+" "+bch+" "+bst;
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